Multi-line parameter hack - what is the trick???

I distinctly remember someone sharing a hack that would allow multi-line text to be passed via a parameter into a note or table cell.  I've scoured the community and I can't find it, but I think that may be more a function of how the search tool works here.  It was something along the lines of creating a multi-line note, referencing the note with a parameter, and then using that parameter on the drawing.  Does anyone remember the exact steps to make this work?  Thanks.